OWINGS MILLS, Md. -- Two of the Baltimore Ravens' rookie draft picks were injured on the same play at training camp Wednesday.

Defensive end Brent Urban and defensive tackle Timmy Jernigan both got hurt on a running drill against the offensive line less than an hour into practice.

Urban, a fourth-round pick out of Virginia, looks more seriously hurt with what appears to be a right knee injury. He needed to be helped off the field by two trainers and was later carted off.

The Ravens expected Urban to be the primary backup to Chris Canty. Urban missed some early offseason practices after undergoing ankle surgery in February.

Jernigan, a second-round pick from Florida State, suffered a back injury. He followed Urban inside team headquarters but he walked off the field on his own power. Jernigan, who was competing for a starting job, had been one of the more impressive rookies at this year's training camp.

Coach John Harbaugh will be asked about the injuries following practice.